Vital signs monitor
US5355893A · kind A · utility
Inventors
Key dates
| Filing date | Sep 13, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Sep 13, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0413
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vital signs monitor comprising a first device capable of being disposed at a selected location on a patient to pass at least exhaled gases therethrough; a second device coupled to the first device to perform a plurality of resistive measurements of certain predetermined parameters of the exhaled gases and a plurality of optical absorption measurements of other predetermined parameters of the exhaled gases; and a third device coupled to the second device responsive to the plurality of resistive measurements and the plurality of optical absorption measurements to provide individual read outs of at least a value of carbon dioxide in the exhaled gases, a value of tidal volume of the exhaled gases and a value of a respiration rate of the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.